Smoking pipe



Feb. l, 1938. N. K. JELLINGHAUS 2,106,747

SMOKING PIPE Filed March 1 PIG. i

IN VEN TOR.

ELMNGHAUS NRMAN KJ TTORNEY.

Patented Feb. l, 1938 UNITED STATES PATENT OFFICE 9 Claims.

My invention consists of a specific improvement of the smoking pipe the.subject of the application Serial No. 713,558, led March 1, 1934 in thename of John P. Tarbox. That pipe embodies inventions applicable to alltypes of smoking pipes whether for loose tobacco, tobacco in chargedform as in envelopes, wrappers, e. g., cigarettes and cigars.

According to the Tarbox invention, there is interposed between the bowlof the pipe and the mouthpiece a displacement force pump having valvedconnections with the pipe bowl and the atmosphere, respectively. 'Ihechamber of the pump aiiords the draft connection between the llv bowl ofthe pipe and the mouthpiece and collects` the deposits ordinarilycollected in pipe stems and upon the operation of the displacement pumpsuch contents are forcibly ejected to atmosphere While the pipe bowl isvcut oif from the chamber. 204 The objects of my invention are tosimplify and strengthen the construction, to render it more practicableto application to pipe stems of the form ordinarily used, to effect anoperation with a smaller number'of manipulated movements and -to makethe action more efficient.

To these ends I utilize as in the Tarbox invention the reciprocatingplunger type of displacement force pump the displacement chamber ofwhich constitutes the draft connection between the bowl and the stem,arrange the chamber with one end projecting to the bowl but not quite tothe axis thereof and the other end to the mouthpiece, close both ends ofthe chamber, effect a valved connection with the. bowl near the closureat that'end but removed slightly therefrom whereby the plunger may benormally accommodated between the port to` the bowl andthe adjoiningclosed end, utilize a tubular plunger, connect the plunger to themouthpiece by projecting the tubular rod through the closed end of thechamber` adjoining the mouthpiece and screw threading it in themouthpiece so that its hollow interior connects axially with the draftopening aperture in the mouthpiece, locating the port to atmosphere 45.l immediately adjoining the closed mouthpiece end ofthe chamber, providethe mouthpiece with an extension which normally covers this port toatmosphere, but which when the mouthpiece is withdrawn exposes it, andproviding the hollow piston rod with an aperture which when themouthpiece is in normal position, connects the pump chamber with themouthpiece but which when the mouthpiece is withdrawn, closes off suchconnection.

ThatI have attained the objects of my invention will be apparent uponthe picturization of this arrangement of parts through the aid of theaccompanying drawing.

Of the drawing- Figure 1 is an axial cross section in a plane. includingboth the axis of the stem and the axis of the bowl of the parts in therelative positions of normal use in smoking.

Figure 2 is a similar cross section in which the parts of the pump areshown in the ejecting position; and

Figure 3 is a view with the parts in a similar relation but showing anexternal perspective without cross section.

I0 is the bowl of the pipe. II is the. mouthpiece and I2 is thedisplacement chamber of the stem in general. I3 is the reciprocatingplunger type displacement force pump in general. I5 is the plunger orpiston of this pump. IB is the plunger rod. I'I is the port from thechamber I3 to the bowl. I8 is the port from the chamber to atmosphere.I9 is the closed head of the cylinder at its ejection end. 20 is a tube.which constitutes the walls of the cylindrical displacement chamber I3.ZI is the aperture in the stem I2 at large into which this tube 20 isscrew threaded as shown.

The bowl end of the displacement chamber is closed by a head 50. Theport I'I communicating with the bowl I0 is spaced from the head 50 by adistance between it and the head suflicient normally to accommodate thepiston or plunger I5 whereby when the plunger I 5 is moved a shortdistance away from the head 50, the port I'I is closed. The head 5l)lies to one side of the axis 5I of the bowl whereby support 52 for aperforated guard plate 29 may be located on the axis. This support is inthe form of a screw as shown. The screw may be withdrawn from the bottomof the bowl, and the guard plate 29 threaded thereon removed from thetop of the bowl. The guard plate prevents the access of solid materialto the port I1.

The plunger I6 is hollow being in the form of a tube and is projectedthrough the head I9 at the opposite end of the tube 20 into themouthpiece II and in axial alignment with the mouthpiece opening 23whereby the hollow of the tube I6 constitutes the draft connection withthe mouthpiece I I. The end of the tube has a threaded connection 53with a metal insert 54 xedly secured as by threaded connection in thebody of the mouthpiece II. By the axial movement of the mouthpiece IItoward and from the stem I2 the plunger I5 may be reciprocated withinthe chamber I3 to forcibly eject the contents of the chamber through theport I8.

The port I8 is normally Iclosed to atmosphere by the forward extensionor skirt 46 of the mouthpiece which has a cylindrical or tapered seating4l with the exterior of the outer end of the tube 25B. This extension 46extends toward the bowl from the port I8 a suflicient distance to makethe mouthpiece draft-tight upon the seat 4?.

Draft connection between the hollow of the tubular plunger I6 and thechamber I4 consists of a draft aperture 22 in the wall of the tube insuch position that when the parts are in their normal relation as shownin Fig. 1, the aperture 22 opens into the chamber I4 in advance of thehead I9. When the tube is Withdrawn, however, to the position shown inFig. 2, this aperture is, during the initial such movement, withdrawnthrough the head I9 and the chamber is sealed against access to the tubeI6 and the forcible ejection of the contents of the chamber is assured.

The head I9 is iixedly threaded or otherwise secured immediatelyadjoining the port I8 clearly 4shown in Figs. 2 and 3 as being axiallynarrow and circumferentially long whereby a sharp and clean ejection isassured when the parts are drawn to the position shown in Fig. 2. Tofacilitate assembly this head maybe threaded into place. Between it andthe mouthpiece end of the tube 20 is placed a filling 55 of absorbentmaterial retained in position by an outer head 56 likewise screwthreaded into the end of the tube. This head 56 surrounding the pistonrod I 6 not only secures this iilling in place but also constitutes withthe head I9 an elongated bearing for the piston rod I6 whereby the rodI6 itself of generous proportions maintains the mouthpiece (with whichit is firmly connected through the insert 54), in rm and alignedrelation to the bowl I0. (See Fig. 2.) The filling wipes the stem I6clean and free from products which might cause it to gum or stick as thestem is withdrawn.

It will be se'en through this picturization that above all theconstruction is simple, that it is strong and sturdy, that it iseflicient, that but one movement is necessary to operate it, areciprocation of the stem I I,though a slight rotary movevment may beused to make the stem enter and leave its seat 41 readily, that there isan elongated and close seating bearing 4T between the mouthpiece and theremainder of the stem, that the parts are simple and cheap tomanufacture,

easily assembled, that the incorporation of the displacement pump in thestem does not alter its outward appearance in any way, that it does notproject through the bowl, indeed, does not reach all the way to the axisof the bowl, thereby not only allowing for an axial support of the guardplate but also preserving unimpaired the bottom contours of the bowl,and that in external appearance the bowl, the stem and the mouthpieceare in all respects essentially the same in organization and principleas in the best forms of pipes in common use today. Moreover, the makingof the rod I6 in tubular form in axial alignment with the mouthpieceopening 23 enables one to clean this tube by the usual pipe cleanerinserted through the stem.

The modicaticns of which my invention are susceptible are without doubtseveral in number. The generic spirit of this practical improvementshould govern the scope of the annexed claims rather'than the termswhich my present inadequate knowledge of future possibilities imposeupon me.

What I claim as new and useful and desire to protect by Letters Patentis:-

l. A pipe comprising a bowl, a mouthpiece, a piston type displacementforce pump between the bowl and the mouthpiece through the chamber ofwhich the draft connection between the bowl and the mouthpiece iseffected, the chamber of the pump having a headed end adjoining themouth-piece through which the operating piston rod of the pump extends,together with a lateral port to atmosphere at said headed end, and thesaid piston rod having a hollow interior through which the draftconnection of the mouthpiece with the chamber is effected.

2. A pipe comprising a bowl, a mouthpiece, a piston type displacementforce pump between the mouthpiece and the bowl and in axial alignmentwith the mouthpiece, the chamber of the pump adjoining the mouthpiecebeing headed andthe piston rod passing through the head and'having a xedoperating connection with the mouthpiece, the chamber being providedwith a lateralA port to atmosphere at the headed end, and the piston rodhaving a hollow interior in axial extension of the hollow interior ofthe mouthpiece wherethrough draft connection between the mouthpiece andthe chamber of the pump is effected.

3. A pipe comprising a bowl, a mouthpieceand a piston type displacementforce pump between the bowl and the mouthpiece comprised of a draft tubeconstituting the chamber of the pump having its opposite endssubstantially closed independently of the mouthpiece, a port near thebowl end through which the chamber communicates with the bowl of thepipe, a port immediately adjoining the mouthpiece end through` which thechamber communicates with atmosphere, a piston normally lying betweenthe bowl port and the adjacent end of the tube, and a piston rod havinga hollow interior normally in communication with the pump chamber andinr axial extension of the hollow interior of the mouthpiece extendedthrough the opposite end of the tube connected with the mouthpiece for'operation of the piston thereby.

4. A pipe comprising a bowl, a mouthpiece-,iax

piston type displacement force pump interconnecting the bowl and themouthpiece through the chamber of which the draft connection between thebowl and the mouthpiece is effected, theA chamber of the pump having apermanently sub-` stantialiy closed end adjoining the mouthpiece,

together with means connected with the mouth` piece normally closing theport to atmosphere.V 5. In a pipe comprising a bowl, a mouthpiece,

a piston type displacement force pump through the chamber of which draftconnection is effected between the bowl and the mouthpiece, the

chamber at the bowl end being permanentlysubstantially closed, thechamber at the mouthpiece end having a removable head independent of themouthpiece, and a piston having a hollow piston rod extended throughsaid head and secured telescopically for an enlongated extent axially tothe mouthpiece whereby the pump is4 operated by reciprocation ,of themouthpiece.

6. A pipe comprising a bowl, a mouthpiece, a reciprocating piston typedisplacement force pump through the chamber of which the draftconnection is eiected between the bowl and the mouthpiece and comprisinga pump cylinder having one end telescoped within the mouthpiece,terminating at the bowl end short of the axis of the bowl but projectingfrom the stem within the bowl and there having a port connection withthe bowl together with a screen guard for the port having a support onthe axis of the bowl, the mouthpiece being connected to the pump plungerto operate the same.

7. In a pipe comprising a bowl, a mouthpiece, a reciprocating pistontype displacement force pump through the headed chamber of which thedraft connection is effected between the bowl and the mouthpiece, thepiston of which pump is provided with a plunger rod which passes througha head in one end of the chamber, and a packing material surrounding therod adjoining the head, together with a port to atmosphere adjoining thehead, whereby the contents of the chamber are forcibly ejected uponoperation of the pump.

8. In a pipe comprising a bowl, a mouthpiece, a reciprocating pistontype displacement force pump through the headed chamber of which thedraft connection is eected between the bowl and the mouthpiece, theYpiston of which pump is provided with a plunger rod which passes througha head in one end of the chamber, and a greatly elongated axial bearingfor the rod where it passes through the head, said rod being connectedwith and operated by the mouthpiece, together with a port to atmospherefrom the chamber adjacent the bearing, whereby the contents of thechamber are forcibly ejected upon operation of the pump.

9. A pipe comprising a bowl, a mouthpiece, a displacement force pumpbetween the bowl and the mouthpiece through the chamber of which thedraft connection between the bowl and the mouthpiece is effected, thechamber `of the pump having a headed end adjoining the mouth-piecethrough which the operating piston rod of the pump extends, togetherwith a port to atmosphere at the said headed end, and the said pistonrod having a hollow interior through which the draft connection of themouthpiece with the chamber is effected, said port being circumfer-`entially arcuate and less than a complete circle in form transverselyof the chamber and having a width less than the length of the arc.

NORMAN K. JELLINGHAUS.

